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<TITLE>JavaScript Source Code 3000:  Forms:  Basic Validation</TITLE>
<META HTTP-EQUIV="JavaScript Source Code 3000" CONTENT = "no-cache">
<META NAME="date" CONTENT="2000-09-09">
<META NAME="channel" CONTENT="Web Developer">
<META NAME="author" CONTENT="JavaScript Source Code 3000">
<META NAME="section" CONTENT="Forms">
<META NAME="description" CONTENT="The simplest way to require visitors to fill out certain fields is to us this script - just add the word "required" to each required field's name and your visitor must fill it out to submit the form!  Neat!">

<SCRIPT LANGUAGE="JavaScript">
<!-- Original: wsabstract.com -->




<!-- Begin
function checkrequired(which) {
var pass=true;
if (document.images) {
for (i=0;i<which.length;i++) {
var tempobj=which.elements[i];
if (tempobj.name.substring(0,8)=="required") {
if (((tempobj.type=="text"||tempobj.type=="textarea")&&
tempobj.value=='')||(tempobj.type.toString().charAt(0)=="s"&&
tempobj.selectedIndex==0)) {
pass=false;
break;
         }
      }
   }
}
if (!pass) {
shortFieldName=tempobj.name.substring(8,30).toUpperCase();
alert("Please make sure the "+shortFieldName+" field was properly completed.");
return false;
}
else
return true;
}
//  End -->
</script></HEAD>

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<b><A HREF="../index.htm" /" TARGET="_top">
Home</A> </b><img src="../img/arrow.gif" /img/arrow.gif" height=13 width=7 border=0 alt="}"> <b><A HREF="index.htm" /forms/" ><font color="#FF0000">Forms</font></A> </b>
<img src="../img/arrow.gif" /img/arrow.gif" height=13 width=7 border=0 alt="}"> <FONT COLOR="#006666">Basic Validation</FONT></b></FONT><BR>
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<!-- Description --><!--content_start-->

The simplest way to require visitors to fill out certain fields is to us this script - just add the word "required" to each required field's name and your visitor must fill it out to submit the form!  Neat!
<hr>
</td></tr>
</table>
<!-- Demonstration -->
<center>
<center>
<form onSubmit="return checkrequired(this)">

<input type="text" name="requiredname">
<br>
<input type="text" name="requiredemail">
<br>
<select name="requiredhobby">
<option selected>Pick an option!
<option>1
<option>2
<option>3
</select>
<br>
<textarea name="requiredcomments"></textarea>
<br>
<input type=submit value="Submit">
</form>
</center>
</center>
<P>
<P>
<a name="source">
<table BORDER=0 WIDTH=486 CELLPADDING=3 CELLSPACING=0>
<tr><td BGCOLOR=yellow><font FACE="helvetica,arial,geneva"><b>JavaScript Source Code 3000:  Forms:  Basic Validation:</b>
<p>Simply click inside the window below, use your cursor to highlight the 
script, and copy (type Control-c or Apple-c) the script into a new file in 
your text editor (such as Note Pad or Simple Text) and save (Control-s or 
Apple-s).  The script is yours!!!<br><br></font></td></tr>
<tr><td BGCOLOR=yellow ALIGN=CENTER>
<form NAME="copy">

<DIV align="center">
<input type=button value="Highlight All" onClick="javascript:this.form.txt.focus();this.form.txt.select();">&nbsp;&nbsp;&nbsp;&nbsp;
<INPUT TYPE="text" NAME="total" VALUE="Script Size:  1.41 KB  " size="24">
</DIV>

<textarea NAME="txt" ROWS=20 COLS=75 WRAP=VIRTUAL>

&lt;!-- TWO STEPS TO INSTALL BASIC VALIDATION:

  1.  Copy the coding into the HEAD of your HTML document
  2.  Add the last code into the BODY of your HTML document  --&gt;

&lt;!-- STEP ONE: Paste this code into the HEAD of your HTML document  --&gt;

&lt;SCRIPT LANGUAGE="JavaScript"&gt;
&lt;!-- Original: wsabstract.com --&gt;

&lt;! &gt;
&lt;! &gt;

&lt;!-- Begin
function checkrequired(which) {
var pass=true;
if (document.images) {
for (i=0;i&lt;which.length;i++) {
var tempobj=which.elements[i];
if (tempobj.name.substring(0,8)=="required") {
if (((tempobj.type=="text"||tempobj.type=="textarea")&&
tempobj.value=='')||(tempobj.type.toString().charAt(0)=="s"&&
tempobj.selectedIndex==0)) {
pass=false;
break;
         }
      }
   }
}
if (!pass) {
shortFieldName=tempobj.name.substring(8,30).toUpperCase();
alert("Please make sure the "+shortFieldName+" field was properly completed.");
return false;
}
else
return true;
}
//  End --&gt;
&lt;/script&gt;

&lt;!-- STEP TWO: Copy this code into the BODY of your HTML document  --&gt;

&lt;center&gt;
&lt;form onSubmit="return checkrequired(this)"&gt;

&lt;input type="text" name="requiredname"&gt;
&lt;br&gt;
&lt;input type="text" name="requiredemail"&gt;
&lt;br&gt;
&lt;select name="requiredhobby"&gt;
&lt;option selected&gt;Pick an option!
&lt;option&gt;1
&lt;option&gt;2
&lt;option&gt;3
&lt;/select&gt;
&lt;br&gt;
&lt;textarea name="requiredcomments"&gt;&lt;/textarea&gt;
&lt;br&gt;
&lt;input type=submit value="Submit"&gt;
&lt;/form&gt;
&lt;/center&gt;

&lt;!-- The first option in your pulldown menus must be set to 'selected' !! --&gt;

 

&lt;!-- Script Size:  1.41 KB --&gt;</textarea><br><font FACE="helvetica,arial,geneva"></font></td></tr>

</table>
</form>
</FONT>
</CENTER>


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